Finding the Fourth Proportional to 694,878.48, 1,042,470.72 and 395,499.96

Step by Step Solution

1. Step 1: Write the proportion equation
   694,878.48 : 1,042,470.72 = 395,499.96 : x
2. Step 2: Convert to fraction form
   694,878.48/1,042,470.72 = 395,499.96/x
3. Step 3: Cross multiply
   694,878.48x = 1,042,470.72 × 395,499.96
4. Step 4: Simplify right side
   694,878.48x = 412,297,128,061.17
5. Step 5: Solve for x
   x = 412,297,128,061.17/694,878.48
6. Step 6: Final answer
   x = 593,337.02